Piston-rod packing



(No Model.)

ZSheets-Sheet '1.

F. A. GARLSON.

PISTON ROD PACKING.

Patented May 6, 1890.

ya I

ATENT FFICE.

FRANK A. OARLSON, OF DALLAS, TEXAS.

PISTON-ROD PACKING.

SPECIFICATION forming part of Letters Patent No. 427,045, dated May 6,1890. Application filed August 16, 1889. Serial No. 320,849. (No model.)

T 0 all whom it may concern.-

Be it known that I, FRANK A. CARLSON, a citizen of the United States,residing at Dallas, in the county of Dallas and State of Texas, haveinvented certain new and useful Improvements in Piston-Rod Packing; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has relation to packing for piston-rods, and is designedmore especially for piston-rods of locomotives; and it consists in theconstruction and novel combination of parts, as will be hereinafter morefully described, illustrated in the accompanying drawings, and pointedout in the appended claim.

The objects of my invention are, first, to provide a metallic packingfor piston-rods that is self-adjusting; secondly, to provide a packingthe parts of which are so arranged as to avoid any escape of steamthrough the gland of the stuffing-box; thirdly, to provide a packingthat does not require a lubricator; fourthly, to provide a packing thatrelieves the piston of all friction, except when steam is admitted tostuffing-box end of cylinder.

In the accompanying drawings, Figure 1. is a longitudinal section of astuffing-box, showing my improved packing in section. Fig. 2 is atransverse section on the line so a" of Fig. 1; Fig. 3, a transversesection on the line y 3 of Fig. 1'; Fig. 4, a detail View of the femalesection of ring 7 Fig. 5, a detail view of the,

male section of ring 7; Fig. 6, a detail view of one of the sections ofring 8; Fig. 7, a detail view of follower. I

Referring to the drawings, in which like numerals indicate correspondingparts in all the figures, 1 indicates the cylinder-head of a locomotivehaving made integral therewith on its outer face the stuffing-box 2,)rovided with the usual gland 3, secured in place by the bolts 4. 5indicates the piston-rod passing through suitable openings in thecylinder-head and gland,and has secured upon its outer end thecross-head 6.

In making my improved metallic packing I prefer to form it of thesectional rings 7 and 8, the outer ring 7, which is composed of the maleand female members 9 and 10,1he inner ring formed of the equal sections11 and 12, designed to abut against the inner face of the outersectional ring.

For holding the several parts of my improved packing against the glandand thus insure any possibility of steam escaping, I

provide a follower 13, having an integral sleeve 13.

14 indicates a follower -spring placed be tween the cylinder-head andover'the sleeve 13' of the follower l3.

In order that the sections 9, 10, 11, and 12 of the rings 7 andSmaybeheld firmly against the piston, I provide the sections of saidrings in their outer edges with recesses 14,in which are placed theleaf-springs 15, designed to press against the inner wall of thestuffingboX 2, and to prevent the scams or meeting edges of the saidring-sections coming opposite each other, and thus insure a perfectsteam-tight joint, I provide the male and female members of the outerring 7 on theirinner'faces with dowels 16, designed to pass between themeeting edges of the sections 11 and 12 of the inner ring 8.

To prevent the ring-sections from becoming unduly heated and binding onthe piston, I provide said sections on their inner edges with recesses17, filled with Babbitt metal 18.

The several parts of my improved packing having been placed in positionin the stuffing-box around the piston-rod, the gland 3 is then securedin place, and the desired tension may be placed on the coil-spring bythe bolts 4, which will hold the ring-sections tightly against thegland.

Having described my invention, what I claim, and desire to'secure byLetters Patent,

In a piston-rod packing, the combination, with a cylinder-head, thestuffing-box 2, and gland 3, adapted to have a longitudinal adjustmentby means of the adj Listing-bolts 4, and the piston-rod 5, passingthrough the cylinder-head and gland, of the ring 7, consisting of themale and female sections 9 10, placed around the piston and against thegland 3, the ring 8, consisting of the equal sections 11 12 in rear ofring 7, the dowel-pins 16, carried by the sections 9 10 and passingbetween the meeting edges of the sections 11 12 the recesses 14' rovidedin the outerfaec i11 constructed and OJerated substantial] of thesections 9 1O 11 12,:1nd the leaf-springs in the manner described. IO15, located in said recesses, and the recesses In testimony whereof Iaflix my signature 011 the inner feces of said sections filled with inpresence of two witnesses.

5 Babbitt inetaLthe fiangedfollower 13, mount- FRANK A. CARLSON.

ed 011 the piston-rod in rear of ring 8, and the \Vitnesses:follower-spring 14-, located between the fol- JOHN COPPIN,

lower and cylinder-head, all of said parts he R. A. DEAN.

